Finding the Fourth Proportional to 89,308.35, 133,987.41 and 72,824.04

Step by Step Solution

1. Step 1: Write the proportion equation
   89,308.35 : 133,987.41 = 72,824.04 : x
2. Step 2: Convert to fraction form
   89,308.35/133,987.41 = 72,824.04/x
3. Step 3: Cross multiply
   89,308.35x = 133,987.41 × 72,824.04
4. Step 4: Simplify right side
   89,308.35x = 9,757,504,505.34
5. Step 5: Solve for x
   x = 9,757,504,505.34/89,308.35
6. Step 6: Final answer
   x = 109,256.35